Massac County RainfallUnited StatesILMassac County85%Metropolis 85% Chance 80%Brookport 80% Chance 85%Mermet Lake 85% Chance Big BayBoazBrookportCretaceous Hills Nature PreserveFort Massac State ParkHillermanJoppaMassac Forest Nature PreserveMermetMermet LakeMetropolisMetropolis Municipal AirportNew ColumbiaRound KnobSamothShady GroveUnionville